Performance Evaluation of Si–Cu-Hybrid Dust as a Powder Additive of EDM Dielectrics to Machine Ti6Al4V with Copper Electrode

  • Shirsendu DasEmail author
  • Swarup Paul
  • Biswanath Doloi
  • Kumar Rahul Dey
Conference paper
Part of the Lecture Notes on Multidisciplinary Industrial Engineering book series (LNMUINEN)


The wide utility of the EDM in industrial and biomedical sectors has drawn the attention of the researchers in the last few decades. In the meantime, intensive works have been performed to improve the machining performance of the EDM. Addition of powder additives in dielectric medium is one of those approaches which moderate the strength of the plasma channel by increasing the concentration of the ions. Powder dusts of copper, titanium, aluminum, tungsten, silicon/silica and carbon nanoparticles are some of the additives which have significant contributions on EDM process parameters. In this work the Si–Cu hybrid powder dust is added with kerosene oil and the comparative analysis is done based on the performance evaluations in terms of material removal rate (MRR) and surface roughness (SR). Silicon and copper are used individually earlier with other powder dust, but here both are added together with dielectric medium to evaluate their combined effects on surface characterizations. Because of the highly conductive nature of the copper, it increases the mobility of the ions and charge particles inside the ionization gap. On the other side, silicon is partially conductor and partially insulator in nature. So because of its semi-conductive properties, it can restrict the spark span and domain which possesses controlled machining. Therefore, the combined influence of these two powder additives gives some excellent features which are highlighted in this article.


Powder additives Copper Silicon MRR SR Micro-structures 


  1. 1.
    Opoz, T.T., Yasar, H., Ekmekci, N., Ekmekci, B.: Particle migration and surface modification on Ti6Al4V in SiC powder mixed electrical discharge machining. J. Manuf. Process. 31, 744–758 (2018)CrossRefGoogle Scholar
  2. 2.
    Bhattacharya, A., Batish, A., Kumar, N.: Surface characterization and material migration during surface modification of die steels with silicon, graphite and tungsten powder in EDM process. J. Mech. Sci. Technol. 27(1), 133–140 (2013)CrossRefGoogle Scholar
  3. 3.
    Chaudhury, P., Samantaray, S., Sahu, S.: multi response optimization of powder additive mixed electrical discharge machining by Taguchi analysis. Mater. Today: Proc. 4, 2231–2241 (2017)Google Scholar
  4. 4.
    Chen, S.-L., Lin, M.-H., Huang, K.-H., Wang, C.-C.: Research of the recast layer on implant surface modified by micro-current electrical discharge machining using deionized water mixed with titanium powder as dielectric solvent. Appl. Surf. Sci. 311, 47–53 (2014). Scholar
  5. 5.
    Kansal, H.K., Singh, S., Kumar, P.: Effect of silicon powder mixed EDM on machining rate of AISI D2 die steel. J. Manuf. Process. 9(2007)CrossRefGoogle Scholar
  6. 6.
    Kumar, S., Batra, U.: Surface modification of die steel materials by EDM method using tungsten powder-mixed dielectric. J. Manuf. Process. 14, 35–40 (2012)CrossRefGoogle Scholar
  7. 7.
    Tripathy, S., Tripathy, D.K.: Surface Characterization and Multi-response optimization of EDM process parameters using powder mixed dielectric. Mater. Today: Proc. 4, 2058–2067 (2017)Google Scholar
  8. 8.
    Wong, Y.S., Lim, L.C., Rahuman, I., Tee, W.M.: Near-mirror-finish phenomenon in EDM using powder-mixed dielectric. J. Mater. Process. Technol. 79, 30–40 (1998)CrossRefGoogle Scholar
  9. 9.
    Hu, F.Q., Cao, F.Y., Song, B.Y., Hou, P.J., Zhang, Y., Chen, K., Wei, J.Q.: Surface properties of SiCp/Al composite by powder-mixed EDM. Procedia CIRP 6, 101–106 (2013)CrossRefGoogle Scholar
  10. 10.
    Kucukturk, G., Cogun, C.: A new method for machining of electrically nonconductive workpieces using electric discharge machining technique. Eng. Sci. Technol.: Int. J. 14(2), 189–207. Scholar
  11. 11.
    Mohala, S., Kumar, H.: Study on the multiwalled carbon nano tube mixed EDM of Al-SiCp metal matrix composite. Mater. Today: Proc. 4, 3987–3993 (2017)Google Scholar
  12. 12.
    Shabgard, M., Khosrozadeh, B.: Investigation of carbon nanotube added dielectric on the surface characteristics and machining performance of Ti–6Al–4V alloy in EDM process. J. Manuf. Process. 25, 212–219 (2017)CrossRefGoogle Scholar
  13. 13.
    Pecas, P., Henriques, E.: Influence of silicon powder-mixed dielectric on conventional electrical discharge machining. Int. J. Mach. Tools Manuf. 43, 1465–1471 (2003)CrossRefGoogle Scholar
  14. 14.
    Talla, G., Gangopadhyay, S., Biswas, C.K.: Influence of graphite powder mixed EDM on the surface integrity characteristics of Inconel 625. Part. Sci. Technol. (2016). Scholar
  15. 15.
    Toshimitsu, R., Okada, A., Kitada, R., Okamoto, Y.: Improvement in surface characteristics by EDM with chromium powder mixed fluid. Procedia CIRP 42, 231–235 (2016)CrossRefGoogle Scholar
  16. 16.
    Zhao, W.S., Meng, Q.G., Wang, Z.L.: The application of research on powder mixed EDM in rough machining. J. Mater. Process. Technol. 129, 30–33 (2002)CrossRefGoogle Scholar

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© Springer Nature Singapore Pte Ltd. 2020

Authors and Affiliations

  1. 1.Department of Production EngineeringNational Institute of TechnologyAgartalaIndia
  2. 2.Department of Production EngineeringJadavpur UniversityKolkataIndia

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